'64 rear differential....

[McCoyAZ]

My old truck is a 64 c10.

The parts house tells me that the '64 is supposed to have a 10 bolt rear end in it and the one I have is a 12 bolt.

They say then if it's a 12 bolt it is from a '63.

They can't seem to tell me which pinion seal I need or which U Joints I need to fix it.

So I need to know when I look for these parts, what year I should be looking at??

It was O'Reiley Auto Parts and a local parts house that couldn't tell me ....